Calculus with Applications (10th Edition)

Published by Pearson
ISBN 10: 0321749006
ISBN 13: 978-0-32174-900-0

Chapter 3 - The Derivative - 3.4 Definition of the Derivative - 3.4 Exercises - Page 176: 30

Answer

$\quad f'(2) = 0.5\\\quad f'(16) = 0.0625\\\quad f'(-3) = -0.\bar3$

Work Step by Step

$f(x) = \ln|x|$ $\implies f'(x) = \lim\limits_{h \to 0} \frac{f(x+h)-f(x)}{h}$ $\implies f'(x) = \lim\limits_{h \to 0} \frac{\ln|x+h|-\ln|x|}{h}$ $\implies f'(2) = 0.5\\\quad f'(16) = 0.0625\\\quad f'(-3) = -0.\bar3$ (These values have been obtained using a graphing calculator, image attached [$h$ has been reduced to a value approximately close to zero to obtain results])
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.